APC SMART-UPS SU1250 UPS High Performance Replacement Battery Set
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⚠️ Quick Reminder
🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.
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Battery Care Guide
Battery Care Guide
Battery Usage and Maintenance Guidelines 🔋
Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.
1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Operate the device until the battery reaches approximately 20% capacity.
- Avoid premature recharging.
- Do not allow the battery to fully discharge during the initial cycles.
Post-Conditioning
- Recharge the battery only when necessary.
- These batteries are capable of approximately 500 charge cycles:
- Once daily → ~500 days
Twice daily → ~250 days
Note: Even a partial recharge is considered a full cycle.
2. Sealed Lead Acid (SLA) Batteries 💡
- No conditioning required.
- Maintain the battery in a fully charged state; avoid complete discharge.
- Capable of 300–400 charge cycles.
- Expected service life: 2–3 years, depending on usage conditions.
3. Laptop Batteries (Lithium-Ion) 💻
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Charge fully, then discharge to approximately 20% capacity.
- Avoid complete discharge, as some devices may not detect a fully drained battery.
Post-Conditioning
- Minimize frequent plugging and unplugging.
- Allow the battery to discharge moderately at least once per month to maintain optimal performance.
- Occasional cycling is recommended to sustain battery health.
Professional Recommendation
Adhering to these guidelines will enhance battery longevity and ensure reliable performance.
For further assistance regarding your battery or order, our customer support team is available to provide guidance.
Delivery and Shipping
Delivery and Shipping
⚡ Everything You Need to Know About Shipping with BatteryWeb (USA)
We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:
🚚 Shipping & Delivery
Most orders ship next business day (some products like sealed lead acid may take a little longer).
Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).
We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.
Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.
Transit times shown are estimates only (business days, no weekends/holidays).
🌍 Shipping Restrictions
Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.
PO Box deliveries are only available via USPS.
At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.
📦 Important Notes
Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.
If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.
💲 Currency & Pricing
All prices are shown in USD.
Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.
⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).
Volts & Amps
12 Volts | 18 Ah
Terminal Type
Nut & Bolt
Replacement Battery Set for APC SMART-UPS SU1250 — SigmasTek SP12-18HR (Compatible with SU1250)
Replace aging batteries in your APC SMART-UPS SU1250 with this dependable SigmasTek replacement UPS battery set. Engineered for both reliable standby capacity and robust short-term power output, this kit brings renewed confidence to your UPS protection strategy. Whether protecting a small data center, network cabinet, or critical workstation, this replacement UPS battery helps ensure uninterrupted operation when power problems occur.
Key Specifications
- Includes: 2 SigmasTek SP12-18HR batteries
- Voltage: 12 Volts
- Amp-Hour (Ah): 18 AH
- Battery Model: SP12-18HR
- Terminal Type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Feature: Low Self-discharge
- Feature: High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatibility note: Must use all existing cables and hardware from original configuration
- Brand: SigmasTek
Benefits
This high-performance UPS battery set is built for users who require dependable, long-lasting battery backups. The high rate discharge capability is tailored for the APC SMART-UPS SU1250, delivering necessary power surges for brief intervals without compromising battery life. Low self-discharge extends shelf life for spare sets, making this an excellent long-lasting battery option for maintenance planning and emergency readiness.
Valve regulated construction ensures spill-proof safety and minimal maintenance, while high vibration resistance and industry certifications (U.L., CE) guarantee rugged reliability in office and IT environments. Use this replacement UPS battery in Uninterruptible Power Supply (UPS) units, emergency power supply systems, and select battery-powered tools where dependable short-term power is required. Each set is tested by our technical team to meet or exceed OEM specifications so your SU1250 performs as expected.
Fast shipping is available for in-stock items, typically within 24 hours. For assistance confirming fitment or step-by-step replacement guidance, contact our knowledgeable customer service at or e-mail us.
Ready to restore full protection? Order this replacement, high-performance UPS battery set for your APC SMART-UPS SU1250 now and secure reliable emergency power for your critical systems.
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